Apparatus for twisting yarn.



PATENTED SEPT. 13, 1904.

I A. B. RHOADES.

APPARATUS FOR TWISTING YARN,

APPLICATION FILED JUNE 23, 1904.

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N0. 770,244; 7 PATENTED SEPT. 13, 1904.

- A. E. RHOADES.

APPARATUS FOR TWISTING YARN.

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Y L I I r M Z M UNir STATES Patented September 13, 1904.

PATENT rrica.

ALONZO E. RHOADES,

OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO TION OF MAINE.

APPARATUS FOR TWISTING YARN.

SPECIFICATION forming part of Letters Patent No. 770,244, dated September 13, 1904.

Application filed June 23, 1904.

To all whom it mlcty concern.-

Be it known that I, ALONZO E. RHoADns, a citizen of the United States, and a resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Apparatus for Twisting Yarn, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to apparatus for twisting yarn in such manner that bunches or enlargements are formed on the yarn at intervals, giving. a fancy appearance thereto.

.The bunch formation is effected by intermittingly delivering one yarn to the twisting instrumentality and continuously delivering thereto one or more bunch-yarns, abunch being formed at each arrest of the main yarn.

In United States Patent No. 7 64,632, dated the 12th day of July, 1904, I have shown apparatus for making fancy yarn of the character referred to, whereby bunches of two or more colors may be made, and also whereby a plurality of bunches may be formed at each. arrest of the main or body yarn, which constitutes the core upon which the bunches are formed. Novel means are shown in said patent for controlling the intermittent rotation of the d elivery-rolls and for varying the duration of the rest periods of the core or main yarn.

My present invention has more particular reference to the means for guiding or directing the bunch-forming yarn or yarns; and it has for its object the production of yarnguiding means whereby the bunches are more accurately located and the bunch-forming yarns are presented in a more positive and certain manner to the main or core yarn.

The novel features of my invention will be fully described in the subjoined specification, and particularly pointed out in the following claims.

Figure 1 is a front view, centrally broken out, of a twisting apparatus, two of the twister-spindles being partially shown with their bosses and attached whirls and with Serial No. 213,803. (No model.)

yarn-guiding means embodying one form of my invention. Fig. 2 is a transverse sectional detail on the line 2 2, Fig. 1, looking toward the right; and Fig. 3 is an enlarged perspective view of the yarn-guiding means.

The twister illustrated is in its general construction similar to twisting apparatus wherein two sets of delivery-rolls are employed; but, as in my patent referred to, the rear set of rolls is continuously driven, and the front set is driven intermittingly to produce bunchyarn.

The twisting instrumentalities S, fingerboards a, mounted on the guide-board a, the head A at the left-hand side of the frame and containing the usual mechanism for positively and continuously driving the rear set of delivery-rolls b b, Fig. 2, and the roll-stands D may be and are all substantially of usual or well-known construction.

The stands D support the carriers D for the top rolls of both the back and front sets of delivery-rolls, the lower back rolls 5 being driven positively from the head motion, the roll-shaft having in practice the usual pinion (not shown) in mesh with the driving-gear A Fig. 1.

The front lower roll 0 extends the length of the frame and is rotated intermittingly, the front top rolls 0 running loosely in bearings in the roll-carriers D and being driven by frictional contact with roll 0.

Guide-eyes or pigtails C B behindthe rolls respectively direct the main or core yarns m, Fig. 2, and the auxiliary plaiting or bunchforming yarns a to the two sets of deliveryrolls, the main yarns passing forward over the rolls I) and down under the lower front roll 0, thence up between it and the top rolls 0, and down through guides, to be referred to.

As shown in Fig. 2, the bunch forming yarns 01/ lead from the guide-eyes B over the back top rolls Z) and down between them and the lower back roll I) and back and under the latter, and thence forward to the guiding means, to be described, which deliver the auxiliary yarns to the main or core yarns.

When the longitudinal movement of the main yarns continues, due to continued rotation of the delivery-rolls c 0, the auxiliary yarns will be twisted together therewith in usual manner; but when such movement of the main yarn is arrested each auxiliary yarn will be twisted around the main yarn to form a bunch thereon.

A bunch will be formed at each stoppage by each auxiliary yarn in a set, and between bunches the yarns will be twisted together. The bunches will manifestly be formed in recurring series, the space between the bunches being determined by the distance separating the points at which the auxiliary yarns are delivered to the main yarn.

The actuating means for the intermittinglyoperating set of delivery-rolls, the means for effecting such intermittent action, and means for varying the size of the bunches form no part of my present invention and may be such as shown, and described in my patent referred to, or other suitable means may be employed, if desired.

I will now describe the yarn-guiding means for directing the auxiliary yarns accurately and at predetermined distances apart to the main or core yarns, said yarn-guiding means comprehending an adjustment for the auxiliary yarn-guides, so that the distance between bunches of a set may be varied.

Upon each of the finger-boards a, I secure firmly, as by screws 50, the foot 1 of an upturned stand 2, shown herein as having two parallel upright guide-ribs 3 3 on its front face, and at its upper end between said ribs I mount a forwardly -projecting guide-eye 1, shown as a pigtail, through which the main yarn leads as it passes downward from the roll 0 to thetwisting instrumentality S. A carrier,shown as a block 5, longitudinally grooved at 6 on its rear face to fit the rib, is slidably mounted on each of the guide-ribs 3, as clearly shown in Fig. 3, and adjustably connected therewith by a clamping screw .9, passed through an elongated slot 8 in the carrier and into one of a series of threaded holes 3 in the rib. One of the carriers has a forward projection 10 extended from its inner upright edge at its lower end, said projection having a substantially horizontal guide-slot 11, and a similar projection is formed on the other carrier at its upper end and adjacent its inner edge, the main yarn traveling downward from the guide-eye 4: between the two projections, which are located atdifi'erent heights. The edges of the guide-slots 11 are rounded to avoid wear on the yarns.

Referring to Figs. 1 and 3, the left-hand one ofthecarriers 5 has an offset 12 at its lower outer corner, in which is mounted a pigtail 13 opposite the adjacent guide-slot 11, and on the right-hand carrier the offset 12 is formed at its upper outer corner to support the pig tail 13, which is opposite the guide-slot 11 of its carrier.

The guiding means shown is arranged for the delivery of a set of two auxiliary yarns a, the two yarns being led through the pigtails 13 and then inward through the guideslots 11, from which they are delivered to the main yarn m, the latter passing through a 'guide-eye cZ on the finger-board vertically beneath the pigtail 4 before passing to the twisting instrumentality S. i

Each auxiliary yarn is by the delivery guideslot 11 presented to the main yarn at a fixed point, so that the bunch will be accurately formed thereat when the longitudinaldelivery of the main yarn is arrested, as Will be manifest.

By loosening the clamping-screws 9 the two carriers 3 may be moved nearer together or farther away from each other vertically for a limited distance, determined by the length of the slots 8, to change the distance between the bunches of a set which are formed simultaneously.

When a greater adjustment is desired, either or both of the screws 9 can be inserted in a different one of the series of threaded holes 3 with which each guide-rib 3 is provided.

It will be seen that the construction of the two carriers is the same, except that they are reversed in position when placed on the stand 1, and hence in the detailed description they have been given the same reference characters.

By leading a plurality of auxiliary yarns of different colors or shades through each guideeye 13 and its adjacent delivery guide-slot 11 a mottled or variegated appearance will be given to each bunch and a wide range of color effects can be produced.

The use of a guide-slot and its cooperating guide-eye causes the auxiliary yarn to be delivered to the main yarn substantially at right angles thereto, the guide-eye acting also to smoothly change the direction of the yarn between the roll 6 and the guide-slot.

My invention is not restricted to the precise construction and arrangement of the guiding means herein shown and described, as the same may be varied or changed in different details by those skilled in the art without departing from the spirit and scope of my invention.

Having described my invention, what I claim, and desire to secure-by Letters Patent, 1s-- 1. In apparatus of the class described, a twisting instrumentality, means to deliver thereto a main yarn and a plurality of bunchforming yarns, to be twisted together and effect the formation of bunches on the main yarn, and adjustable means to guide and deliver the bunch-forming yarns to the main yarn at predetermined points, whereby the distance between simultaneously-formed bunches may be varied.

2. In apparatus of the class described, a twisting instrumentality, means to deliver thereto a main yarn and a plurality of bunchforming yarns to be twisted together and effect the formation of bunches on the main yarn, and a separate and independently-adjustable delivery-guide for each bunch-forming yarn, whereby the distance between simultaneously-formed bunches may be varied.

3. In apparatus of the class described, a twisting instrumentality, means to deliver thereto a main yarn and a plurality of bunchforming yarns to be twisted together and effect the formation of bunches on the main yarn, separate delivery-guides for the bunchforming yarns, located on opposite sides of the path of movement of the main yarn, to deliver the bunch-forming yarns thereto at predetermined points, and means to adjust said delivery-guides with relation to each other.

4. In apparatus of the class described, a

twisting instrumentality, means to deliver thereto a main yarn and a plurality of bunchforming yarns to be twisted together and effeet the formation of bunches on the main yarn, and guiding means for the bunch-forming yarns, said means comprising an upright stand having parallel vertical guideways thereon, a carrier adjustable on each guideway, and means on each carrier to deliver a bunch-forming yarn to and substantially at right angles to the main yarn.

5. In apparatus of the class described, a twisting instrumentality, means to deliver thereto a main yarn and a plurality of bunchforming yarns to be twisted together and effeet the formation of bunches on the main yarn, and guiding means for the bunch-forming yarns, said means comprising an upright,

fixed stand having a main-yarn guide-eye at its upper end, bunch-yarn delivery-guides on the stand at opposite sides ofthe path of movement of the main yarn, and means to effect independent vertical adjustment of said delivcry-guides.

' 6. In apparatus of the class described, a twisting instrumentality, two yarn-delivering mechanisms one of which is adapted to operate intermittingly to arrest at intervals the travel of the yarn delivered thereby, a plurality of independently-adjustable guides located on opposite sides of and to deliver to the intermittingly-moving yarn the yarns delivered by the other of said mechanisms, and a common support on which said guides are adjustably mounted.

7 Guiding means for bunch-yarn twisters, comprising an upright stand having on its face parallel, elongated guideways, a carrier movable on each guideway, each carrier having a directing guide-eye and an adjacent forwardlyextended projection having a guide-slot, to deliver yarn substantially at right angles to the guideway, and means to clamp each carrier in adjusted position on its particular guideway, the projections of the two carriers being located adjacent their inner upright edges.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALONZO E. RHOADES.

Witnesses:

GEORGE OTIs DRAIER, ERNEST W. W001). 

